Wheel



Jan. 1 7, y1928.

J. LEDWIN KA WHEEL Filed March 19. 192'?` Patented Jan. 17, 1928.

. lUNITED STATES PATENT OFFICE.

JOSEPH LEDWINKA, OF PHILADELPHIA, PENN BYLVAN IA, ASSIGNOB TO BUDD'WHEEL COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYL- VANI-A.

WHEEL.

' Application med March 19, 1927. Serial No. 176,595.

This invention relates to wheels and more particularly to disc vehicle wheels of the detachable or demountable type.

The development of machinery for eiliciently producing wheel hubs and brake drums of integrall formation has rendered more simple than has heretofore been possible, the structure of vehicle wheels. In disk wheels of the detachable or demou'nt- 1o able t pe it no longer becomes necessary t0 provi e the wheel hub with a fiange and permanently fasten a brake drum tor one side of the flange and to demountably attach the wheel disk` and rim *to the other side of the hub flange. The construction of the wheel may be made lighter, simpler and more economical by attaching the wheel disk to the brake drum head. The wheel. of my invention contemplates such construction and its design fully attains the ob]ect of invention hereinafter set forth.

It is an object of my invention to provide a demountable disk wheel of li ht, simple and economically manufacture construczs tion, n

This object' is attained in general by 1ntegrally forming the' wheel hub 'and brake drum. The head of the drum has pressed therein an annular seat.' The wheelrim is circumferentiall split and each portion thereof is providedY with an inturned flange. These inturned flanges are seated on said brake drum seat and are detachably fastened thereto by suitable fastening means. The

' y u split" rim provides the means whereby the tire may be readily and easily mounted on and taken off the rim.4 With t e brake drum formed integrally with the hub and the wheel disk attached to the brake drum head u sothat the wheel disk' need not be extended from therim toward the hub as far as is necessary in anon-integral hub and brake drum construction, the. simplified and lightened construction made possible is at once u apparent. The advent of the four wheel brake has made this construction particularly desirable since brake drums arejrequired for all four wheels instead of merely the rear two. s y In the drawings accompanying this application and disclosing the embodiment of my inventionselected for illustration,

Fig. 1 is a view in elevation of a portion of a wheelconstructed in accordance with Il my invention and,

Fig. 2 is a sectional view on an enlarged scale taken on line 2--2 of Fig. 1.

The hub 1 of my wheel has mounted thereon, but preferably formed integrally therewith, a brake'drum 2 having the customary flange 3 providing the re uired brakmg surfaces 4 and 5. Formed 1n the head of the brake drum by pressing or other suitable method is an annular depression or seat 6. Rim 7 is circumferentially divided preferably at a point midway between the two tire retaining flanges 8 and 9 forming thereby a two-part rim. Each of the two parts 10 and 11 is provided with an inturned iange 12 and 13 respectively, preferably coextensive in the direction of the hub 1. The inturned ian es 12 and 13 are of sufficient inherent rigi ity and strength-to support its own half of the rim without connection to the 'other and are seated'on seat 6 of the, brake drum and detachably fastened thereto in any suitable manner, such as by means of the Abolt and nut arrangement shown in the drawing.-

. It is to e understood that the diameter of the 'brake drum may be varied as desired, from which it follows that, for a wheel of given diameter, the inturned flanges' 12 and 13 will vary in lengthinversely as the drum 'diameter and the rim mav be su ported at any Ydesired distance from t e rum ian But should the rim be spaced far enoug from the drum iiange so that there is a possibility of the two parts of the rim separating under the pressure of the tire, road shocks or other causes, the inturned fianges may be held together by any. suitable means at spaced points adjacent the rim. v

Thus is provided a wheel characterized by lightness, simplicity and. economy of manufacture; The lightness isV attained by the saving of metal resultin y-from the integral construction of hub and rake drumand the mounting of the wheel body to the head of 100 the brakeinstead'of in a re ion nearer the hub. Simplicit is provided y constructing the complete w eel of only three parts, exelusive' of the fastening means on the drum seat, the three parts constituting the in- 105 tegral hub and drum and the two rim parts. The economy of manufacture characterizing this wheel vresults from the saving in time p and material made possible by forming` the hub and brake drum. integrally and by eon- 110 l 5 assembled.

Lese-,sost

structing the wheel body, including therim, flanges mounted on said brake drum and Y of two Identical parts. Further sav' in connected thereto but extending freely 'of' time results from the ease with whi a eachother from brake drum to rlm and each wheel of such simple construction may be of suicient inherent rigidit and strength to support itsgown half of t e rim without 1 5 Having described my invention, what I connection to the other; claim as new and desire to secure by Let- In testimony whereof he hereunto axes lters'Patent is: A his signature.

In a wheel, a.`hub,.a brake .and a y A10 two part rim having coextensive inturned .JOSEPH LEDWINKA. 

